Why photosynthesis is a chemical reaction?

Short/Brief Note

Photosynthesis is a process in which light energy from the sun is used by the plants to prepare starch from carbon dioxide and water.
The sunlight uses the chemical reaction between carbon dioxide and water, which finally ends up in the production of starch (photo means light and synthesis means production). These chemical reactions used by light are called photochemical reactions.

shaalaa.com

Factors Determining Chemical Changes

Is there an error in this question or solution?

Chapter 10: Changes around us - Exercises [Page 112]

Chapter 10 Changes around us
Exercises | Q V. 10. | Page 112

Spoiling of food is a ______ change.

On immersing an iron nail in CuSO₄ solution for a few minutes, you will observe ______.

The head of a matchstick contains red phosphorous.

Ammonia is an important fertilizer in agriculture.

Decaying of vegetables and fruits due to microbes.

Match the following

Define the term exothermic and endothermic reactions.

What happens to the steel benches and tables during the rainy season?

Write a note on catalytic reactions.

Reason out

Chlorine is produced by Brine.